Well, while there are obviously no guarantees of water resistance in the rep world, I believe that current offerings are not bad at all. Depending on model of course.
I have 16 watches and have not hesitated to get any of them wet. Shower, pool, recreational swimming. No real diving. Not a single water related failure to date.
My advice...... Be more careful with chronos. Don't worry about rep divers, but also don't do any serious diving with them.
Lastly, remember Murphy's Law! [emoji6]